420066444 has 24 divisors (see below), whose sum is σ = 1120177408. Its totient is φ = 120018960.

The previous prime is 420066433. The next prime is 420066469. The reversal of 420066444 is 444660024.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2500312 + ... + 2500479.

Almost surely, 2^420066444 is an apocalyptic number.

It is an amenable number.

420066444 is an abundant number, since it is smaller than the sum of its proper divisors (700110964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420066444 is a wasteful number, since it uses less digits than its factorization.

420066444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5000805 (or 5000803 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

The square root of 420066444 is about 20495.5225354222. The cubic root of 420066444 is about 748.9267279599.

The spelling of 420066444 in words is "four hundred twenty million, sixty-six thousand, four hundred forty-four".